Bike runs fantastic at low rpms and wide open, but seems a little starved at 3/4 throttle (around 4k rpms). It's most noticeable in 3rd gear around town. Which adjustment would remedy this (mixture screw, needle clip)?
Main jets are 120, and I believe I have the needle clip set on the second notch up but I can't remember for sure.
From the charts I've seen it looks like I may need to raise the needle?
1977 CB750